FORD TEMPO HEATER PROBLEM

NOTE : Vehicles may be equipped with an aluminum or a copper brass heater core. In all cases, replacement cores are copper brass. It is essential to positively identify the type of core being replaced because aluminum cores use different heater core-to-heater case seals (Fig.19) than the copper brass cores. Having the correct seal is essential for satisfactory performance of the heater system.

Identificationn can be made by looking at one of the core tubes after a hose has been removed. An aluminum core will have a colored tube. A copper brass core will have a brass-colored tube.

If the vehicle has a copper brass core, the seal removed with the old core can be used with the new copper brass replacement core, providing it is not damaged during removal.

If the vehicle has an aluminum heater core, a new seal for the copper brass replacement core will be required.